Heterostructures and Cryogenic Science and TechnologyNo Access

JOSEPHSON π-STATE DUE TO SPIN-ACTIVE JUNCTION INTERFACE

YASUHIRO ASANO

Applied Physics, Hokkaido University, Sapporo, 060-8628, Japan

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YUKI SAWA

Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan

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YUKIO TANAKA

Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan

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https://doi.org/10.1142/S0217979207044615Cited by:0 (Source: Crossref)

Abstract

Motivated by a recent experiment [R. S. Keizer, et. al., Nature 439, 825 (2006)], we study the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The Josephson π-state is more stable than the 0-junction when the spin-flip scattering at the junction interface opens the Josephson channel of the odd-frequency Cooper pairs.

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